l need solve this step by step

Question 1 (20 points) Given z=sin(1), x=2ts and y=2ts, y dz then calculate E whent = 1 and S = 1. Question 2 (20 points) Given the surface x2y+ yzz + 22x = 39. Find the normal line and the tangent plane to the given surface at the point (3, 3, 1). Question 3 (20 points) Find all the local maximum and minimum and saddle points, with their values, for the function f(x,y)=13x2 +5xy+8y2 +125x+9y+ 17